The economy expanded a touch slower in the third quarter than previously reported, revised government figures show, but the path of growth is still the same: The U.S. running well below the historical norm more than six years into a recovery.Gross domestic product — the sum of all the activity in an economy — increased at a 2% annual pace from July to September, according to the government’s latest update. Previously the Commerce Department had said the U.S. grew at a 2.1% rate after a 3.9% increase in the second quarter.